A kinetic study was made of the acylation of 3-pentanol with butylethyl-, dibromo-, diethyl-, dichloro-, dimethyl-, and diphenylketenes. All reactions were first order in keteneand first order in alcohol. The reactivity of the ketenes increases in the order given. The acylation of 3- pentanol with diphenylketene occurred at a faster rate in a nonpolar solvent. These results are interpreted to suggest a onestep process involving a cyclic transition state and ...
